He opused OVER Palin related material/comments. After according to your research, 4 years of no comments on the subject.
Thats a spaz. See also “Overreaction”.
The fact that he said nothing about her for more than four years merely indicates that he’s not obsessed with her. I would also say that it indicates that he does not have PDS.
Considering the amount of nutty stuff that’s been posted here over the years by some people, I would hardly say that his opus was that much of an overreaction.